CAF Call interface

This interface is used as the API to an object that can handle multiple call legs. It is primarily used by other CAF modules such as Behaviors to interact with the call management object without explicitly knowing its class definition. This interface is particularly useful since a system designer can completely replace the default call handling class (GRP_DOC_CALL_MANAGEMENT_CAF_CALL) (LINK?) by a custom class but still benefits from all the behaviors from the Toolpack modules (e.g., ring-back-tone, voicemail-fallback, etc.).

Usage

This interface does not define the behavior of the class nor its implementation. This is specifically what makes this interface so useful since applications such as Telephony Application could be easily modified by providing a new, custom-made, call handling class by simply changing one line in the application. All remaining code of the application does not need to be altered as it never makes any reference to the class since it always uses interface pointers.

Caveats

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